Target Information

IL-23 is a heterodimeric cytokine composed of the p40 subunit of IL-12 disulfide-linked with a protein p19. p19, like p35 of IL-12, is biologically inactive by itself. IL-23 interacts with IL-12Rbeta1 and an additional, novel beta2-like receptor subunit with STAT4 binding domain, termed IL-23R. IL-23 is secreted by activated mouse and human dendritic cells. Biological activities of mouse IL-23 are distinct from those of mouse IL-12.

Mouse IL-23 was found not to induce significant amounts of IFN-γ. Mouse IL-23 does induce strong proliferation of memory T cells (but not naive T cells), whereas IL-12 has no effect on memory cells. Additionally, mouse IL-23 (but not IL-12) can activate mouse memory T cells to produce the proinflammatory cytokine IL-17.

Human IL-23 has biological properties which are less distinct from human IL-12; human IL-23 induces proliferation of memory T cells and induces moderate levels of IFN-γ production by naive and memory T cells, as compared to IL-12.

Synonyms

il 23; IL 23 A; IL12B; Il-12b; Il12p40; Il-12p40; il23; IL-23; IL-23 subunit alpha; IL23A; IL-23A; IL-23-A; IL23P19; IL-23p19; ILN; Interleukin; interleukin 12B; interleukin 23 p19 subunit; interleukin 23 subunit alpha.

interleukin 23, alpha subunit p19; interleukin-23 subunit alpha; Interleukin-23 subunit p19; interleukin-six, G-CSF related factor; JKA3 induced upon T-cell activation; MGC79388; P19; p40; RP23-388G23.1; SGRF; UNQ2498/PRO5798